Home / 229,139,855.96-316,239,927.24-128,684,802.20

Finding the Fourth Proportional to 229,139,855.96, 316,239,927.24 and 128,684,802.20

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Solution

The fourth proportional to 229,139,855.96, 316,239,927.24 and 128,684,802.20 is: 177,600,148.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    229,139,855.96 : 316,239,927.24 = 128,684,802.20 : x
  2. Step 2: Convert to fraction form
    229,139,855.96/316,239,927.24 = 128,684,802.20/x
  3. Step 3: Cross multiply
    229,139,855.96x = 316,239,927.24 × 128,684,802.20
  4. Step 4: Simplify right side
    229,139,855.96x = 40,695,272,484,621,792
  5. Step 5: Solve for x
    x = 40,695,272,484,621,792/229,139,855.96
  6. Step 6: Final answer
    x = 177,600,148.67

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.